Water cooler



FIG. 1 is a front elevational view of a first embodiment of a water cooler showing my new design.

FIG. 2 is a right side elevation view thereof, with the left side being a mirror image thereof,

FIG. 3 is a top view thereof.

FIG. 4 is a perspective view of the top portion thereof.

FIG. 5 is a partial front view of an embodiment of a dispensing portion of a water cooler showing my new design; and,

FIG. 6 is a partial front view of an embodiment of a dispensing portion of a water cooler showing my new design.

The broken lines shown on FIGS. 1, 2, and 5 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a water cooler, as shown and described. 